Correct or not
Tell the truth
PEMADS-plz excuse my aunt sara

It’s wrong.
16 x 4 for the muffins = 64 muffins in total
24 x 3 for the cupcakes = 72 cupcakes in total
add them together and you’ll get 136. then take away 15, since 15 cupcakes were sold, and your answer should be 121 in total.